Bronzing-machine.



PATENTED MAY 29, 1906.

M. FRITSGHB.

BRONZING MACHINE.

APP'LLQATIQN FILED FEB. s, 1906.-

2 SHEETS-SHEET 1.

wi/bneooeo No. 822,108. PATENTED'MAY 29, 1906. M. FRITSGHB. BRONZINGMACHINE.

APPLICATION FILED FEB.8, 1906.

2 SHEETS-SHEET 2.

were STATES rarest rriois.

MAX FRITSCHE, OF OARLSTADT, NEW JERSEY, ASSIGNOR TO JOSEPH A. KAPP, OFNEW YORK, N. Y., AND LOUIS HEUGSTLER, OF WEEHAWKEN, NEW JERSEY.

v BRONZlNG-IVIACHINE.

No. 822,108. Specification of Letters Patent. Patented May 29, 1906.

T0 rtZZ whom it may concern:

Be it known that 1, MAX FRITSCHE, a citizen of the United States,residing in Carlstadt, in the county of Bergen and State of New Jersey,have invented certain new and useful Improvements in Bronzing-Machines,of which the following is a specification.

This invention aims to provide certain improvements inbronzing-machines, and more especially in the mechanism for operatingthe supply-roller of the bronze-fountain; and for this purpose theinvention consists of an improved mechanism for intermittentlyactuatingthe feed-roller of the bronze-fountain from the shaft of thesheet-carrying cylinder, as will be fully described hereinafter, andfinally pointed out in the claims. In the accompanying drawings, Figure1 is a side elevation of my improved bronzingmachine. Fig. 2 is a sideelevation of the mechanism by which motion is transmitted to thebronze-powder feed-roller from the shaft of the sheet-carrying cylinderdrawn on a larger scale. Fig. 3 is an end elevation of Fig. 2. Fig. 4 isa plan view, partly in section; and Fig. 5 shows the handle for thegravity check-pawls.

Similar letters of reference indicate corresponding parts in thedifferent figures of the drawings.

Referring to the drawings, A represents the supporting-casing of abronzing-machine, and F the bronze-fountain, which is supported thereon,a suitable feed-roller being furnished in said fountain for transmittinga quantity of bronze-powder to the sheet that is fed to thesheet-carrying cylinder of the machine. The shaft f of the feed-rolleris provided at one end with a sprocket-wheel f which is driven by aweighted sprocketchain f which passes over the sprocketwheel and isconnected at its upper end with an oscillating lever d, which isfulcrumed at f to the supporting-frame of the machine at the upper partof the same. The fulcrumed lever d is provided with a slot tat its upperend for adjusting a connecting-link e on the upper end of the lever d bymeans of a setscrew c, said link being provided with a hook c forholding the end link of the sprocketchain 7 To the opposite or lower endof the sprocket-chain is attached a counterbalancing-weight w. Thesprocket-wheel is placed loosely on the shaft of the feed-roller;

but said shaft is turned in one direction by the sprocket wheel inconnection with a pawl and ratchet mechanism comprising parallel pawlsp, fulcrumed to the outer face of said sprocket-wheel and normallyengaging a ratchet-wheel T, which is keyed by its hub to said shaft. Oneof the pawls p is slightly longer than the other, so that theratchet-wheel can be actuated to the extent of half a tooth, whereby theaccuracy of the adjustment is increased. A handle h is loosely pivotedto the screw which forms the ivot 0 said pawls and is provided atits iower end with an inwardly-extending arm h, which when said handle ispivotally moved engages under the pawls p and lifts the samefromengagement with the ratchet-wheel r.

The lower end of the fulcrumed lever (Z is provided with anantifriction-roller (P, which moves under the tension exerted on thesprocket-chain by its weight w over the periphery of a cam I), appliedto the shaft S of the sheet-carrying cylinder.

Each rotation of the cam b produces the oscillation of the lever d, andthereby the rotation in one direction only of the ratchetwheel, andconsequently of the feed-roller, so as to supply the required quantityof bronze-- powder to the sheet delivered to the sheetcarrying cylinder.By the adjustment of the connecting-link by which the sprocketchain isconnected with the oscillating lever 01 the rotation of the feed-rollerand the supply of bronze-powder to the sheet are regulated. Theintermittent rotary motion imparted to the feed-roller is dependent onthe length of the sheet to be bronzedthat is to say, the feed-roller hasto be rotated for a shorter period of time for a shorter sheet and for alonger period of time for a longer sheet. The higher the connecting-linkis adjusted in the oscillating lever d the greater will be theoscillation of the same, and consequently the greater the rotationimparted to the feedroller, while when the link is adjusted in a lowerposition in the oscillating lever the rotation will be shorter, andconsequently the period of time for the supply of the powder shorter.

The adjustment of the sprocket-wheel can be readily accomplished by theattendant, so

that the bronze-powder feed-roller is rotated for the exact timerequired. The adjustment is a positive one and can be accomplishedaccurately by the simple adjustment of the link in the upper slotted endof the oscillating lever.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a bronzing-machine, the combination, with theshaft of the sheet-carrying cylinder-shaft and the feed-roller shaft, ofa sprocket-wheel on the latter, a pawl-andratchet mechanism between thesprocketwheel and shaft, an oscillating motion-transmitting lever, aweighted chain connected with said lever and passing over thesprocketwheel, and a cam on the shaft of the sheetcarrying cylinder foractuating the lower end of the motion-transmitting lever.

2. In a bronzing-machine, the combination, with the sheet-carryingcylinder and the feed-roller shaft, of a sprocket-wheel p'laced looselyon the latter, a pawl-and-ratchet mechanism between the sprocket-wheeland shaft, an oscillating lever fulcrumed to the supporting-frame of themachine, a weighted sprocket-chain engaging said sprocket-wheel andconnected adjustably to the upper end of the oscillating lever, and acam on the shaft of the sheet-carrying cylinder engaging the lower endof said oscillating lever.

wheel, parallel pawls pivoted to the face of said sprocket-wheel andnormally engaging said ratchet-wheel, said pawls being of such relativelengths as to permit the adjustment of said ratchet-wheel to the extentof half a tooth, and means for moving said sprocketwheel alternately inopposite directions.

4. In a bronZing-machine, in combination, with the feedroller shaft, aratchet-wheel keyed thereto, a sprocket-wheel rotatable on said shaft, apawl pivoted to said sprocketwheel and normally engaging saidratchetwheel, a handle pivoted to the pivot of said pawl and having anarm adapted to engage under the latter, and means for alternately movingsaid sprocket-wheel in opposite directions.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

MAX FRITSCHE.

Witnesses:

HENRY J. SUI-IRBIER, PAUL GoEPEL.

